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CT Dosimetry and Applications

M Arreola1*, M Mahesh2*, (1) University of Florida, Gainesville, FL, (2) Johns Hopkins University, Baltimore, MD



Presentations

(Sunday, 4/8/2018) 10:30 AM - 12:30 PM

Room: Marquis Ballroom 1-4

In the field of diagnostic radiology, Computed Tomography (CT) is the "go to" modality for structural patient information. The utility of the modality is unquestionable, however, the cost of its diagnostic utility is a relatively high radiation dose imparted to the patient. As such, it is imperative that a clinical physicist understand CT dosimetry to calculate patient dose reconstructions for safety review and tracking. Further, knowledge of the underlying principles of CT are necessary to understand how to optimize scanning protocols to only deliver the necessary radiation dose for the desired task. Physicist training in the effective use of CT is especially important for specialty scans that are traditionally not as widely discussed, such as cardiac CT.

This session will review both current and new methodologies for CT dose calculations with a focus on practical implementation. It will further review the basics cardiac CT and discuss techniques implemented to optimize patient dose.

Learning Objectives:
1. Understand and implement methods for CT dose reconstruction.
2. Understand the basics of cardiac CT acquisition.
3. Explain techniques to optimize patient dose during cardiac CT scanning.


Handouts

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